本文介绍了排序包含字符串,日期和数字数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

  myarray的无功= [
    _aaaa_2013-09-25_ssss9.txt',
    _aaaa_2013-09-25_ssss8.txt',
    _aaaa_2013-09-26_ssss1.txt',
    _aaaa_2013-09-25_ssss10.txt',
    _aaaa_2013-09-26_ssss2.txt',
    _aaaa_2013-09-25_ssss13.txt',
    _aaaa_2013-09-25_ssss5.txt',
    _aaaa_2013-09-25_ssss6.txt',
    _aaaa_2013-09-25_ssss7.txt
];

我需要按日期和编号的数组排序。

结果应该是

  VAR的结果= [
    _aaaa_2013-09-25_ssss5.txt',
    _aaaa_2013-09-25_ssss6.txt',
    _aaaa_2013-09-25_ssss7.txt',
    _aaaa_2013-09-25_ssss8.txt',
    _aaaa_2013-09-25_ssss9.txt',
    _aaaa_2013-09-25_ssss13.txt',
    _aaaa_2013-09-26_ssss1.txt',
    _aaaa_2013-09-26_ssss2.txt
];

我已经试过低于code.this会做那种只有日期,但我需要在这之前,我.txt'.How可以做到这一点。

数排序

  myArray.sort(功能(A,B){    VAR timestamp1与= a.substring(a.indexOf('_ AAAA')+ 6,a.indexOf('_ SSSS'));
    VAR与timestamp2 = b.substring(b.indexOf('_ AAAA')+ 6,b.indexOf('_ SSSS'));
    timestamp1与=新的日期(Date.UTC(timestamp1与[0],timestamp1与[1],timestamp1与[2]));
    与timestamp2 =新的日期(Date.UTC(与timestamp2 [0],与timestamp2 [1],与timestamp2 [2]));    返回(timestamp1与>与timestamp2)? 1:(与timestamp2> timestamp1与-1:0);});


解决方案

您可以做到这一点是这样的:

  VAR重= /^_aaaa_(\\d\\d\\d\\d-\\d\\d-\\d\\d)_ssss(\\d+)\\.txt$/;VAR的结果= myArray.slice()排序(功能(A,B){
    变种AA = a.match(重),BB = b.match(重新);
    返回(
        AA [1]; BB [1]? -1:
        AA [1]≥ BB [1]? 1:
        氨基酸[2] - BB [2]
    );
});

请注意使用 .slice()来创建数组的一个副本。这可以,如果你想代替原来的数组进行排序可以省略。 (感谢@DerFlatulator的提醒!)

var myArray = [
    '_aaaa_2013-09-25_ssss9.txt',
    '_aaaa_2013-09-25_ssss8.txt',
    '_aaaa_2013-09-26_ssss1.txt',
    '_aaaa_2013-09-25_ssss10.txt',
    '_aaaa_2013-09-26_ssss2.txt',
    '_aaaa_2013-09-25_ssss13.txt',
    '_aaaa_2013-09-25_ssss5.txt',
    '_aaaa_2013-09-25_ssss6.txt',
    '_aaaa_2013-09-25_ssss7.txt'
];

I need to sort the array by date and number.

Result should be

var result = [
    '_aaaa_2013-09-25_ssss5.txt',
    '_aaaa_2013-09-25_ssss6.txt',
    '_aaaa_2013-09-25_ssss7.txt',
    '_aaaa_2013-09-25_ssss8.txt',
    '_aaaa_2013-09-25_ssss9.txt',
    '_aaaa_2013-09-25_ssss13.txt',
    '_aaaa_2013-09-26_ssss1.txt',
    '_aaaa_2013-09-26_ssss2.txt'
];

I have tried below code.this will do the sort by date only but i need to sort by the number which is before '.txt'.How can i do this.

myArray.sort(function (a, b) {

    var timeStamp1 = a.substring(a.indexOf('_aaaa') + 6, a.indexOf('_ssss'));
    var timeStamp2 = b.substring(b.indexOf('_aaaa') + 6, b.indexOf('_ssss'));
    timeStamp1 = new Date(Date.UTC(timeStamp1[0], timeStamp1[1], timeStamp1[2]));
    timeStamp2 = new Date(Date.UTC(timeStamp2[0], timeStamp2[1], timeStamp2[2]));

    return (timeStamp1 > timeStamp2) ? 1 : (timeStamp2 > timeStamp1 ? -1 : 0);

});
解决方案

You could do it like this:

var re = /^_aaaa_(\d\d\d\d-\d\d-\d\d)_ssss(\d+)\.txt$/;

var result = myArray.slice().sort( function( a, b ) {
    var aa = a.match(re), bb = b.match(re);
    return(
        aa[1] < bb[1] ? -1 :
        aa[1] > bb[1] ? 1 :
        aa[2] - bb[2]
    );
});

Note the use of .slice() to create a copy of the array. This can be omitted if you want to sort the original array in place. (Thanks to @DerFlatulator for the reminder!)

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08-28 00:32